Measuring the psychosocial burden in women with low-grade abnormal cervical cytology in the TOMBOLA trial: psychometric properties of the Process and Outcome Specific Measure (POSM)

Kieran Rothnie, Seonaidh Claire Cotton, Shona Fielding, Nicola M Gray, Julian Little, Margaret E Cruickshank, Leslie G Walker, Mark Avis, Linda Sharp

Research output: Contribution to journalArticle

4 Citations (Scopus)
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Background: There is a need for an instrument to measure the psychosocial burden of receiving an abnormal cervical cytology result which can be used regardless of the clinical management women receive.Methods: 3331 women completed the POSM as part of baseline psychosocial assessment in a trial of management of low grade cervical cytological abnormalities. Factor analysis and reliability assessment of the POSM were conducted.Results: Two factors were extracted from the POSM: Factor 1, containing items related to worry; and Factor 2 containing items relating to satisfaction with information and support received and change in the way women felt about themselves. Factor 1 had good reliability (Cronbach's alpha 0.769), however reliability of the Factor 2 was poorer(0.482). Data collected at four subsequent time points demonstrated that the factor structure was stable over time.Conclusion: This study demonstrates the presence and reliability of a scale measuring worries within the POSM. This analysis will inform its future use in this population and in other related contexts.

Original languageEnglish
Article number154
Number of pages9
JournalHealth and Quality of Life Outcomes
Publication statusPublished - 12 Nov 2014



  • Adult
  • Anxiety
  • Causality
  • Comorbidity
  • Cost of Illness
  • Factor Analysis, Statistical
  • Female
  • Great Britain
  • Humans
  • Middle Aged
  • Outcome and Process Assessment (Health Care)
  • Psychometrics
  • Quality of Life
  • Reproducibility of Results
  • Self Concept
  • Stress, Psychological
  • Uterine Cervical Diseases
  • Young Adult

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